chrome/browser/ui/cocoa/task_manager_mac.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_
   6 #define CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9 #include <vector>
  10
  11 #include "base/mac/scoped_nsobject.h"
  12 #include "chrome/browser/task_manager/task_manager.h"
  13 #include "chrome/browser/ui/cocoa/table_row_nsimage_cache.h"
  14
  15 @class WindowSizeAutosaver;
  16 class TaskManagerMac;
  17
  18 namespace gfx {
  19 class ImageSkia;
  20 }
  21
  22 // This class is responsible for loading the task manager window and for
  23 // managing it.
  24 @interface TaskManagerWindowController :
  25   NSWindowController<NSTableViewDataSource,
  26                      NSTableViewDelegate> {
  27  @private
  28   IBOutlet NSTableView* tableView_;
  29   IBOutlet NSButton* endProcessButton_;
  30   TaskManagerMac* taskManagerObserver_;  // weak
  31   TaskManager* taskManager_;  // weak
  32   TaskManagerModel* model_;  // weak
  33
  34   base::scoped_nsobject<WindowSizeAutosaver> size_saver_;
  35
  36   // These contain a permutation of [0..|model_->ResourceCount() - 1|]. Used to
  37   // implement sorting.
  38   std::vector<int> viewToModelMap_;
  39   std::vector<int> modelToViewMap_;
  40
  41   // Descriptor of the current sort column.
  42   base::scoped_nsobject<NSSortDescriptor> currentSortDescriptor_;
  43 }
  44
  45 // Creates and shows the task manager's window.
  46 - (id)initWithTaskManagerObserver:(TaskManagerMac*)taskManagerObserver;
  47
  48 // Refreshes all data in the task manager table.
  49 - (void)reloadData;
  50
  51 // Callback for "Stats for nerds" link.
  52 - (IBAction)statsLinkClicked:(id)sender;
  53
  54 // Callback for "End process" button.
  55 - (IBAction)killSelectedProcesses:(id)sender;
  56
  57 // Callback for double clicks on the table.
  58 - (void)selectDoubleClickedTab:(id)sender;
  59 @end
  60
  61 @interface TaskManagerWindowController (TestingAPI)
  62 - (NSTableView*)tableView;
  63 @end
  64
  65 // This class listens to task changed events sent by chrome.
  66 class TaskManagerMac : public TaskManagerModelObserver,
  67                        public TableRowNSImageCache::Table {
  68  public:
  69   explicit TaskManagerMac(TaskManager* task_manager);
  70   ~TaskManagerMac() override;
  71
  72   // TaskManagerModelObserver
  73   void OnModelChanged() override;
  74   void OnItemsChanged(int start, int length) override;
  75   void OnItemsAdded(int start, int length) override;
  76   void OnItemsRemoved(int start, int length) override;
  77
  78   // Called by the cocoa window controller when its window closes and the
  79   // controller destroyed itself. Informs the model to stop updating.
  80   void WindowWasClosed();
  81
  82   // TableRowNSImageCache::Table
  83   int RowCount() const override;
  84   gfx::ImageSkia GetIcon(int r) const override;
  85
  86   // Creates the task manager if it doesn't exist; otherwise, it activates the
  87   // existing task manager window.
  88   static void Show();
  89
  90   // Hides the task manager if it is showing.
  91   static void Hide();
  92
  93   // Returns the TaskManager observed by |this|.
  94   TaskManager* task_manager() { return task_manager_; }
  95
  96   // Lazily converts the image at the given row and caches it in |icon_cache_|.
  97   NSImage* GetImageForRow(int row);
  98
  99   // Returns the cocoa object. Used for testing.
 100   TaskManagerWindowController* cocoa_controller() { return window_controller_; }
 101
 102  private:
 103   // The task manager.
 104   TaskManager* const task_manager_;  // weak
 105
 106   // Our model.
 107   TaskManagerModel* const model_;  // weak
 108
 109   // Controller of our window, destroys itself when the task manager window
 110   // is closed.
 111   TaskManagerWindowController* window_controller_;  // weak
 112
 113   // Caches favicons for all rows. Needs to be initalized after |model_|.
 114   TableRowNSImageCache icon_cache_;
 115
 116   // An open task manager window. There can only be one open at a time. This
 117   // is reset to NULL when the window is closed.
 118   static TaskManagerMac* instance_;
 119
 120   DISALLOW_COPY_AND_ASSIGN(TaskManagerMac);
 121 };
 122
 123 #endif  // CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_